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What is phenotype?...

What is phenotype?

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A physically expressed external character in an individual is known as phenotype.
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A cross was carricd out between a pure bred tall pea plant and a pure bred dwarf pea plant and F_(1) progeny was obtained. Later, the F_(1) progeny was selfed to obtain F_(2) progeny. Answer the following questions : (i) What is the phenotype of the F, progeny and why? (ii) Give the phenotypic ratio of the F_(2) progeny. (iii) Why is the F_(2) progeny different from the F_(1) progeny?

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OSWAAL PUBLICATION-PRINCIPLES OF INHERITANCE AND VARIATIONS -(TOPIC 2 ) (SEX DETERMINATION AND GENETIC DISORDERS (MULTIPLE CHOICE QUESTIONS ))
  1. What is phenotype?

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  2. All genes located on the same chromosome :

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  3. Conditions of a karyotype 2n pm 1 and 2n pm 2 are called :

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  4. Distance between the genes and percentage of recombination shows :

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  5. If a genetic disease is transferred from a phenotypically normal but c...

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  6. In sickle cell anaemia glutamic acid is replaced by valine. Which one ...

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  7. Person having genotype I^A IB would show the blood group as AB. This i...

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  8. ZZ/ZW type of sex determination is seen in :

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  9. A Across between two tall plants resulted in offspring having few dwar...

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  10. In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that:

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  11. Which of the following will not result in variations among siblings?

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  12. Mendel's Law of independent assortment holds good for genes situated o...

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  13. Occasionally, a single gene may express more than one effect. The phen...

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  14. In a certain taxon of insects some have 17 chromosomes and the others ...

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  15. The inheritance pattern of a gene over generations among humans is stu...

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  16. It is said that Mendel proposed that the factor controlling any charac...

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  17. Two genes 'A' and 'B' are linked. In a dihybrid cross involving these ...

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  18. In the F2 generation of a Mendelian dihybrid cross the number of pheno...

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  19. Mother and father of a person with 'O' blood group have 'A' and 'B' bl...

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